In keeping with my posting frenzy of the afternoon, an article from Fred Wilson on the topic of Free Software:
If you dissect the model, you'll see that the one time effort of building something is something many software creators are willing to do for free. But the ongoing time and effort of supporting and maintaining the software is not something that can be done for free.
This closely matches the model we're following at XWiki. He end his article with this quote, which I found funny:
But it does mean that the free model is very powerful and should be considered by anyone who like to create things but does not like to deal with hard work of maintaining and supporting the work. It is the model behind this blog in fact. You get the content for free. Anything else, you have to pay for with equity in your company.
From: "Free Software, Paid Support" at: http://www.avc.com/a_vc/2011/02/free-software-paid-support.html